General description 8PCS HSS Wood Plug Cutter set is designed for creating perfect dowels to fill drilled holes. This comprehensive set includes 4 standard countersink bits and 4 four-tooth chamfer cutters, which produce tapered plugs ideal for countersunk holes. Made from durable carbon steel with a titanium coating, these tools are built for high precision and longevity. Technical specifications Diameter sizes: 6mm (1/4"), 10mm (3/8"), 13mm (1/2"), 16mm (5/8") Shank diameter: 9.3mm Material: Carbon steel, titanium coated Includes: 8 pieces wood drill bits Usage Suitable for both table drilling and hand drilling, this set is ideal for DIY projects, home improvement, and general building and engineering tasks. It is recommended to practice on a bench for optimal results. Easy centering ensures accurate drilling. Other information Caution: Avoid high speeds during use to prevent smoke and burning.